bio | website | sites.google.com/site/… |
---|---|---|
location | University of Copenhagen | |
age | 29 | |
visits | member for | 5 years, 10 months |
seen | 2 hours ago | |
stats | profile views | 9,294 |
Aug
19 |
answered | The line bundle of the divisor at infinity of the moduli stack of stable curves of genus $g \ge 2$ |
Aug
1 |
awarded | Enlightened |
Aug
1 |
awarded | Nice Answer |
Jul
30 |
comment |
What's the relationship between the different versions of the BBD decomposition theorem?
Regarding whether you can deduce Version 1.a from Version 1, I don't believe that there's a direct argument. What you need to know is that $f_\ast \mathrm{IC}_X \in D^b_c(Y)$ is actually constructible wrt the stratification $\{S_\lambda\}$. |
Jul
30 |
comment |
What's the relationship between the different versions of the BBD decomposition theorem?
I agree with Ben Webster - what's your definition of geometric origin? I would say that $K$ is of geometric origin if it can be obtained from the trivial perverse sheaf over a point by applying the standard six functors and forming subquotients; in particular, every summand of $f_\ast K$ in Version 2 ought to be of geometric origin by definition, and the only nontrivial part of the statement is semisimplicity. |
Jul
30 |
answered | Do modular forms show up in the cohomology of moduli spaces of unmarked curves? |
Jul
13 |
awarded | Nice Answer |
Jun
26 |
comment |
Number of $\mathbb F_p$ points constant mod $p$?
A remark is that Fulton's trace formula only applies to compact $X$, whereas Allen is specifically considering affine varieties (whose coherent cohomology will be a bit uninformative). |
Jun
26 |
answered | Number of $\mathbb F_p$ points constant mod $p$? |
Jun
16 |
revised |
Tate twist and comparison between Betti and de Rham cohomology
added 36 characters in body |
Jun
16 |
answered | Tate twist and comparison between Betti and de Rham cohomology |
May
18 |
answered | Extending the Abel-Jacobi map over the DM-compactification $\overline{\mathcal{M}}_2$? |
May
13 |
awarded | Nice Answer |
May
12 |
awarded | Nice Question |
May
7 |
revised |
genus 2 Siegel theta series of 3-dimensional lattices
deleted 1 character in body |
Apr
29 |
awarded | Deputy |
Apr
29 |
awarded | Good Answer |
Apr
20 |
reviewed | Leave Open 'Stalk' of vanishing cycles at $k$-point |
Apr
15 |
comment |
Identify ring of polynomials symmetric under forgetting variables
Should your equation say $p(x_1,\dots,x_{n-1},0)=p(x_1,\dots,x_{i-1},0,x_{i+1},\dots,x_{n})$? |
Apr
12 |
comment |
Models for the moduli space $\overline{M}_{1,n}$
If you send me an e-mail I can send you Belorousski's thesis as pdf. |